Join Barron Stone for an in-depth discussion in this video ✓ Solution: Motor control, part of Electronics Foundations: Semiconductor Devices.
(thoughtful music)…- [Instructor] Let's take a look at my solution…for the challenge to design the H bridge circuit…to control a DC motor.…I began by thinking about whether…each of the transistors would be acting…as a high side switch or a low side switch…connected to the motor.…The top two transistors are both acting…as high side switches because their connected…to the five volt power source…and they control whether or not current flows…down to the motor that's connected below them.…
I use PNP transistors to create a high side switch…so both of those top two transistors will be PNP.…The same logic applies to the bottom two transistors.…They're both serving as low side switches…because they're connected…between the motor and ground,…and, since I use NPN transistors…to create low side switches,…both of the bottom transistors will be NPN.…Now I need to figure out how to orient…each of these transistors.…
Since the top two transistors are PNP transistors…and current flows down into them…from the five volt source,…they should be oriented…
- Semiconductor materials
- Diode applications
- Rectifying a signal
- Detecting the signal peak
- Protecting against large signals, reverse current, and flyback voltage
- Special purpose zener diodes, Schottky diodes, and photodiodes
- NPN and PNP bipolar junction transistors
- Using a BJT as a switch
- Field effect transistors
- Differences between BJTs and MOSFETs
- Operational amplifiers
- Op-amp applications
- Comparing signals
- Buffering signals
- Amplifying signals
- Filtering signals
- Combining signals
Skill Level Intermediate
Learning to use MakerBot 3D Printerswith Kacie Hultgren1h 5m Appropriate for all
2. Diode Applications
3. Special Purpose Diodes
4. Bipolar Junction Transistors
5. Transistor Applications
6. Field Effect Transistors
7. Operational Amplifiers
Feedback circuits6m 30s
8. Op-Amp Applications
Next steps1m 9s
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